Screw-top can.



ITO-834,173. .PATENTED OCT. 23; 1906.

s. TEVANDER.

SGRBWTOP CAN.

APPLICATION FILED HAY15, 1905.

vlbB

Wfiwaaas: Q I I Ira/ma)".

. Java/L 7' ml" @WMMM W? UNITED STATES PATENT OFFICE.

SWAN TEVANDER, OF MAYWOOD, ILLINOIS, ASSIGrNOR TO AMERICAN OAN COMPANY,OF JERSEY.

NEW YORK, N.'Y., A CORPORATION or NEW scRE'w-i'oP CAN. I

Specification of Letters Patent.

, Patented Oct. 23,1906.

Application filed May 16, 1905. Serial No. 260,895.

To all whom it may concern:

Be it known that I, SWAN TEVANDER, a citizen of the United States,residing in Ma wood, in the county of Cook and State of 11 inois, haveinvented a new and useful Imrovement in Screw-Top Cans, of which theollowing is a specification.

My invention relates to improvements in screw-topcans; 1

The object of my invention is to provide a screw-top can ofa' simple,efficient, durable, and economical constructlon 1n whlch the screw-capmay be readily inserted or removed however tightly it may become stuckor fixed in place. i

My invention consists in the means I employ to practically accomplishthis object or resultthat is to say, it consists, in connec-' tion withthe screw top or nozzle of the can,

of a screw-cap therefor, furnished with a deep countersink, thus formingan integral upwardl -projecting rim and aninverted caps disk aving itsupwardly-projecting flange fitting between theinnerand outer walls ofthe upwardly-projecting double rim of the screw-cap, thus providing thescrew-cap with an upwardly-projecting rim of three thicknesses, which 1sfurnished with a diametrical slot to receive a nail, linife, or otherimplement for unscrewing the cap.

My invention also consists in the novel construction of parts anddevices and in'the novel combinations of parts and devices herein shownor described.

In the accompanying drawings, forming a part of this specification,Figure 1 is a side elevation of a screw-top can embodying my invention.Fig. 2 is a plan View, and Fig. 3 is a central vertical detail section.

In the drawings, A represents a can having an upper head a with anopenin a therein, surrounded by an inclined annu ar flange a? andhorizontal flange a.

B is the screw top or nozzle, having annular flanges b b soldered oroiherwise secured to the head a of the can. The screw-top Bis furnishedwith screw-threads b and with an I inturned flange b to serve as a seatfor the cork disk or packing C.

D is the screw-cap, the same having screwthreads (I and an upwardly-projecting annular double rim (1 (1 formed by provioing the screw-capwith a deep countersink. The inar wall (1 0 this upwardly-projectingintegral double rim of the screw-cap is' furnished with a rollenlargement or reinforcement (i to give additional strength and rigidityto this upwardly-projecting rim.

F is the inverted cap-disk, the upwardl projecting flange f of whichfits between t e outer and inner walls (1 (Z of the upwardlyprojectingdouble .rim of the screwcap-and forms a snug and tight fit with theseinner and outer walls of the screw-cap. The up-.

wardlyrprojecting rim of the screw-cap is thus caused to be composed ofthree thicknesses and is given great stiffness and rigidity, as theupwardly-projecting flange of the supplemental inverted ca F reinforcesthe (louble walls d d of the integral upwardly-projecting rim of thescrew-cap. The tripartite upwaruly-projecting rim of the screw-cap isprovided with a diametrical slot D to receive a knife, nail, lever, orother implement for screwing and unscrewing the cap.

G is a sheet-metal disk or washer inter-- posed between the cork orpacking C and the lnverted su plemental cap-disk F to prevent the samesticking to the cork or packing, and thus interfering with theunscrewing of the screw-cap. The supplemental'inverted capdisk F isprovided with an annular bead or shoulder f to give a narrow bearing ofthe same on the washer G, and thus facilitate the unscrewing of thescrew-cap. By this means however tightly the screw-cap may become fixedor stuck to the screw top, it can be readily unscrewed.

I claim- 1. In a screw-top can, the combination with the screw-top of ascrew-cap having'a double upwardly-projecting slotted inte ral annularrim, said double rim being furnis ed with an annular hollow enlargementat its tually bracing and supporting each -other below said annularenlargement, and-a-supplementahca -disk=having an upwardly-.pro-

jecting annu ar flange :nesting within and tightly engaging one of theannular walls of said double rim, substantially as specified.

3. The combination with a screw-top, (if a screw-cap having an integralupwardlyroj ecting doable annular rim furnished wit an annular hollowenlar ement atlits'up er end and provided with s ots extending t rou htheiinnerand outerwalls of'the rimiand t e =enlar ement,zthe'innen andouter'walls ofethe doub e rrim afitting'snug'rly =.together "and 'mutuallybracing and-supporting each" otherbelowsaid annular enlargement,and a supplemental cap-disk having an -upwardlyeprm jeoting annularIflange nesting Within and rtightl-yengaging one o'f'the annularwalls-ofsaid double rim, and a :Inetal disk or washer interposed between saidpacking-disk and said supplemental disk, substantially :as

specified.

4 The combinatiOn With'asorewetop; of ascrew oap rhaving an annularupwardlyprojecting double-Tim, and anlinverted cap-disk having anupwardly-projecting flange fitting between thewalls-o said double"rimysaid upwardly-projecting doubler-am of the-sorewcap and saidupwardlysprojecting flange of the cap-disk being furnished withopen-slots to receivean-implement for unscrewing the cap, substantially:as specified.

5. The combination-with a sorew-.top,=ofa screw-cap havingan upwardly-proj eating in- 'tegral annular double rim and aiflanged cap' disk'l-iaa iirg its annular flange .fitting and clamped between the innerand outer walls 1 of and double rim ofthe-somwmap, said:dou ble'rim andthe flange ofsaid cap-disk having gegistering open slots substantiallyas specied.

"6. 'The combination with a screw-top, of a screw-cap having an integralannular upwardly-pro jecting double rim, and-an invert- -ed cap-diskhavin an upwardly-projecting flange, nesting with and bracin the wallsof said double :rirn, said upward y-projeoting double rim of thescreweap and said upwardly projeoting fiange'of the cap-disk be-'ing.=furnis'hed with open slots to receive an :implement for unscrewingthe cap, a cork -orpacking interposed between said screwtop andscrew-cap, and a-sl1eet-n1etal disk or ,washerbetween said cork orpackin and said inverted cap-disk, said inverte capdisk havinganarrow'annular bearing against *said'washer substantially. as specified.

7. The combination with a screw-top, of a screw-cap having :an=upwardly+projecting annular double rim and -a flanged cap-disk with itsannular flange fitting between the inner-and'outer walls of said'doublerim of the screw-ca there being 0 en-slots through both walls 0saidrimand t irougli thelflange of said cap-disk,:a cork'orpaoking, anda sheet metal' disk 'or Washer on top 'of said corkor'packing,-substantially as specified. SWAN TEVANDER.

Witnesses:

EDMUND .AncooK, M. MUNDAY.

